\name{ltmose07}
\docType{data}
\alias{ltmose07}
\alias{ltmose12}
\title{Topo: Longspine Thornyhead Fishing Grounds (WCVI)}
\description{
  PolySet of polygons describing 7 (or 12) Longspine Thornyhead fishing 
  grounds off the west coast of Vancouver Island according to Brian Mose (CGRCS).
}
\usage{
data(ltmose07)
data(ltmose12)
}
\format{
  Data frame comprising 4 columns: \cr
    \code{PID...}{primary polygon ID} \cr
    \code{POS...}{position of each vertex within a given polygon} \cr
    \code{X.....}{longitude coordinates} \cr
    \code{Y.....}{latitude coordinates}
}
\details{
  \code{ltmose07}: 55 vertices trace 7 contours that describe 7 fishing grounds. \cr
  \code{ltmose12}: 82 vertices trace 12 contours that describe 12 fishing grounds.

  A data frame attached as an attribute called \code{PolyData} gives the names 
  assigned to the 7 (or 12) fishing grounds by Brian Mose.
  \code{PolyData} has 2 columns: \cr 
  \code{PID.....}{primary polygon ID,} \cr
  \code{label...}{name of the fishing ground.}
}
\source{
  Brian Mose, Canadian Groundfish Research and Conservation Society
}
\references{
  Krishka, B.A., Starr, P.J. and Choromanski, E.M. (2005) Longspine Thornyhead 
  random stratified trawl survey off the West Coast of Vancouver Island, 
  September 4--21, 2003. \emph{Canadian Technical Report of Fisheries and Aquatic 
  Sciences} \bold{2577}, vi + 93 pp. \cr
  \url{http://www.dfo-mpo.gc.ca/libraries-bibliotheques/tech-eng.htm}

  Starr, P.J., Krishka, B.A. and Choromanski, E.M. (2002) Trawl survey for 
  Thornyhead biomass estimation off the West Coast of Vancouver Island, 
  September 15 to October 2, 2001. \emph{Canadian Technical Report of Fisheries and 
  Aquatic Sciences} \bold{2421}, 60 pp.

  Starr, P.J., Krishka, B.A. and Choromanski, E.M. (2002) Longspine Thornyhead 
  random stratified trawl survey off the West Coast of Vancouver Island, 
  September 6--23, 2002. \emph{Canadian Technical Report of Fisheries and Aquatic 
  Sciences} \bold{2558}, 81 pp. \cr
  \url{http://www.dfo-mpo.gc.ca/libraries-bibliotheques/tech-eng.htm}
}
\examples{
\dontrun{
local(envir=.PBSdataEnv,expr={
pbsfun=function(ex=1){
  opar = par(no.readonly=TRUE); on.exit(par(opar))
  if (!require(PBSmapping, quietly=TRUE)) stop("`PBSmapping` package is required")
  if (ex==1) {
  data(ltmose07,nepacLL,envir=.PBSdataEnv)
  xlim=extendrange(ltmose07$X); ylim=extendrange(ltmose07$Y)
    plotMap(ltmose07,xlim=xlim,ylim=ylim,border="lightseagreen",lwd=2)
    addPolys(nepacLL,col="sandybrown")
    addLabels(attributes(ltmose07)$PolyData,polys=ltmose07,
      placement="CENTROID",col="purple4") }
  if (ex==2) {
    data(ltmose12,nepacLL,envir=.PBSdataEnv)
  xlim=extendrange(ltmose12$X); ylim=extendrange(ltmose12$Y)
    plotMap(ltmose12,xlim=xlim,ylim=ylim,border="red",lwd=2)
    addPolys(nepacLL,col="moccasin")
    addLabels(attributes(ltmose12)$PolyData,polys=ltmose12,
      placement="CENTROID",col="darkblue",cex=.8) }
  invisible() }
pbsfun(1); pbsfun(2)
})
}
}
\seealso{
  \code{\link{ltsa}}, \code{\link{ltxa}}, \code{\link{ltea}}
}
\keyword{datasets}
